HELP! T1 here, new to Dexcom G6 and already messed up my first try! Need advice!

So yesterday I placed my site on my tummy (which is recommended but I have very little fat there). It got stuck and I somehow wedged the applicator off. Then I could not get the meter or smart phone to connect. I figured the chip ether was in but a bad place for good blood flow or the chip never made it in my skin. So I need help/advice. I have some fat on my arms and more on my legs. Should I try one of those locations and if so, what way to place the site (vertical or horizontal). Any advice would help. Thank you guys